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Re: Pterosaur Fur
I agree that it's moot, and you aren't mistaken, but even soft bat fur is
capable of triggering a flow seperation. It doesn't take much to do that.
Incidentally, the only bats that I'm aware of that have hair on the wings
are solitary bats that don't sleep in tightly packed clusters, and they have
it only on the undersurface of the inner wing where there is a flow
separation anyway, Seems to be a case of a need for insulation superceding
flight needs. As always, compromise rules.... For pterosaurs, I could see
some uses for more 'bristlely' fur or fuzz along the upper juncture of the
neck and shoulders, but don't remember if any actually have it.
----- Original Message -----
From: "MICHAEL HABIB" <firstname.lastname@example.org>
Sent: Tuesday, October 16, 2007 3:07 PM
Subject: Re: Pterosaur Fur
It doesn't need structural strength, it simply
needs to trigger a flow
separation, which it would do quite well
I suspect that we are imagining different concepts
of "fuzz", though perhaps I was simply mistaken.
Basically, my thought was that hairs of any
substantial length would simply buckle, and thus
radically change in their orientation and effect on
flow separation. But the issue is probably moot anyway.
In passing, the
can also be used to trigger separation.